Logon Failed with crystal and oracle

What is wrong?

HTML Code:

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{       
        Utilitarios oUtil=new Utilitarios();
        cn.ConnectionString = oUtil.GetConnectionstring();
        string ocmd="Select * from solicitudes_vw where num_solicitud='" + txtnumero_caso.Text + "'";
        OleDbCommand cmd = new OleDbCommand (ocmd, cn);       
        OleDbDataAdapter da = new OleDbDataAdapter(cmd);
        DataSet ds = new DataSet();
        da.Fill(ds);
        rpsolicitud Rep = new rpsolicitud();                                       
        CrystalDecisions.Shared.TableLogOnInfo crLogonInfo;
        crLogonInfo = Rep.Database.Tables[0].LogOnInfo;
        crLogonInfo.ConnectionInfo.ServerName = "MyServerName";
        crLogonInfo.ConnectionInfo.UserID = "USERID";
        crLogonInfo.ConnectionInfo.Password = "PASS";
        crLogonInfo.ConnectionInfo.DatabaseName = "DB";
        Rep.Database.Tables[0].ApplyLogOnInfo(crLogonInfo);
                               
        Rep.SetDataSource(ds);                               
        CrystalReportViewer1.ReportSource = Rep;
               
        MemoryStream oStream; // using System.IO
        oStream = (MemoryStream)
        Rep.ExportToStream(CrystalDecisions.Shared.ExportFormatType.PortableDocFormat);                       
        Response.Clear();
        Response.Buffer= true;
        Response.ContentType = "application/pdf";
        Response.BinaryWrite(oStream.ToArray());
        Response.End(); */

}

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